
% ============================================
% |        WEIGHT ESTIMATION  TOOL           |
% |											 |
% |          Instrumentation, Avionics       |
% |			   and Eletronics  	    		 |
% ============================================

function [W_iae] = WET_Torenbeek_Avionics(N_eng, N_pax, W_to)

    if N_eng == 1 % For single engine propeller driven airplanes
    
        W_iae = 33* N_pax;
    
    end
    
    if N_eng >= 2 % For multi-engine propeller driver airplanes
    
        W_iae = 40 + 0.008 * W_to;
        
    end
    

end